Detailed introduction
　　I. Overview of Injection Water Tanks
　　Water for injection refers to water that meets the requirements of the Chinese Pharmacopoeia for water for injection. Water for injection is distilled water or deionized distilled water, so it is also weighed distilled water. In order to effectively control microbial contamination and bacterial endotoxin level at the same time, the design and manufacture of purified water and injection water systems have two major characteristics: one is that more and more disinfection/sterilization facilities are used in the system; the other is that the pipeline distribution system has evolved from the traditional water supply pipeline to the circulating pipeline. Therefore, injected water storage tanks require non-toxic, corrosion-resistant, on-line cleaning and sterilization. The ventilation port of the water tank for injection should be equipped with hydrophobic sterilization filters without falling off fibers. Water for injection can be stored at above 80 C, over 70 C or below 4 C. Therefore, the injection water tank is a double-layer tank with thermal insulation.
　　CHARACTERISTICS OF INJECTION TANKS
　　1. The tank body adopts sanitary and aseptic design, and each pipe mouth adopts drawing treatment to form a smooth transition, avoiding the cleaning dead angle caused by direct socket welding and ensuring the reliability and stability of the production process. Mirror polishing treatment for inner tank surface (roughness Ra < 0.4? M); mirror panel or grinding plate for outer surface, which is hygienic and beautiful.
　　2. The process interfaces all adopt ISO standard quick-loading chuck-type interfaces, which are sanitary, no dead angle, easy to disassemble and equipped with anti-corrosion gaskets. Guarantee service life.
　　3. It has on-line cleaning (CIP) and on-line sterilization (SIP) functions and meets GMP standards.
　　4. The inner surface is treated as mirror, and the outer surface is subglossy or the upper and lower head is subglossy. It is easy to clean without leaving dead angle.
　　5. Temperature display control system and liquid level display system can be selected according to need. For those with remote output control functions required for automation, local display and manual control are used for routine operation observation.
　　8. Drawing flanging process is adopted for arc transition of pipe orifice, which is smooth and easy to clean without dead angle, ensuring the reliability, stability of production process and meeting the requirements of GMP.
　　9. Because the preservation condition of injected water requires thermal insulation, the injected water tank with thermal insulation layer can keep constant temperature.